Pump dispenser



FIG. 1 is a perspective view of a pump dispenser showing my new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a pump dispenser, as shown and described. 